| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Saxifragaceae | Heuchera aceroides | Mapleleaf Alumroot | Shaded calcareous or basic cliffs. | W. NC and e. TN. In NC, H. aceroides occurs primarily in the sedimentary window around Hot Springs, and is possibly limited to Madison, Buncombe, and Haywood counties. | |
| Saxifragaceae | Heuchera alba | Quartzitic outcrops at high elevations (WV and VA), on acid cliffs at lower elevations (PA). | C. PA south to w. VA and ne. WV. See Schuette et al. (2018) for discussion of the taxon and its range extension northwards into c. PA. |  | |
| Saxifragaceae | Heuchera americana | American Alumroot | Rocky forests, rock outcrops, particularly where soils are subacidic to circumneutral. | CT and NY west to s. ON, n. IN, s. IL, and sc. MO south to c. GA, c. AL, n. MS, n. LA, and ne. TX. |  |
| Saxifragaceae | Heuchera arkansana | Arkansas Alumroot | Shaded rock outcrops. | Endemic to AR, mainly in the Boston Mountains and Ozark Plateau. | |
| Saxifragaceae | Heuchera caroliniana | Carolina Alumroot | Rocky forests, rock outcrops, particularly where soils are subacidic to circumneutral, replacing H. americana in much of the upper Piedmont. | Endemic to the Piedmont of sc. VA, NC, and nc. SC; first found in VA (Henry County) by T.F. Wieboldt in 2002 (Belden et al. 2004). |  |
| Saxifragaceae | Heuchera hirsuticaulis | Bluffs and outcrops. | S. MI west to n. IL and sw. MO, south to c. TN, nw. AR, and ne. OK. In Union Parish, LA (Michael 2021c). Allegedly ranging east to w. KY (Medley 1993), w. and c. TN (D. Estes, pers. comm. 2008), and e. GA (Screven County specimens at NCU, but perhaps better considered H. americana [var. heteradenia]). |  | |
| Saxifragaceae | Heuchera hispida | Purple Alumroot | Calcareous rocky forests, rock outcrops, particularly where soils are subacidic to circumneutral. | S. PA south through MD, WV, and VA to nw. NC. |  |
| Saxifragaceae | Heuchera longiflora | Long-flowered Alumroot | Rich shaded forests and woodlands over calcareous rocks such as limestone, dolostone, or calcite-cemented shales, siltstones, or sandstones, in circumneutral soils. | This species is nearly limited to sedimentary rocks, occurring in e. and c. KY, s. OH, sw. WV, sw. VA, ne. TN, and c. AL. |  |
| Saxifragaceae | Heuchera macrorhiza | Giant Alumroot | Cliffs, riverbanks, especially in calcareous or subcalcareous substrates. | S. WV, s. OH, and s. IN south through c. KY and c. TN to n. AL and ne. MS. |  |
| Saxifragaceae | Heuchera missouriensis | Missouri Alumroot, Interior Low Plateau Grotto Alumroot | Shaded cliff bases, usually under overhangs, on grotto floors, nearly always in deeply shaded situations where little or no direct sunlight falls. | S. IN and s. IL south through Cumberland TN to n. AL and ne. MS (Tishomingo County). |  |
| Saxifragaceae | Heuchera parviflora var. parviflora | Cumberland Grotto Alumroot | Shaded cliff bases, usually under overhangs, on grotto floors, behind waterfalls where humidity is high but not in the spray zone, in rockhouses of the Cumberland Plateau, nearly always in deeply shaded situations where little or no direct sunlight falls. | An uncommon species throughout its range (s. OH, WV, w. VA south through e. KY to w. NC, nw. SC, n. GA, and se. TN), H. parviflora is probably most common in the gorge and waterfall country of sw. NC and in the Cumberland Plateau of TN and KY. |  |
| Saxifragaceae | Heuchera parviflora var. saurensis | Sauratown Grotto Alumroot | Shaded cliff bases, nearly always in deeply shaded situations where little or no direct sunlight falls. | Known only from the Sauratown Mountains and Linville Gorge, in the upper Piedmont and Blue Ridge escarpment of nw. NC |  |
| Saxifragaceae | Heuchera puberula | Ozark Grotto Alumroot | Riparian areas, and also shaded cliff bases. | Apparently restricted to the Ozark Plateau; references to this taxon occurring east of the Mississippi River appear to be based on misidentifications of H. parviflora, based on aberrant glabrous specimens otherwise consistent with the latter taxon. | |
| Saxifragaceae | Heuchera pubescens | Marbled Alumroot | Rocky forests, rock outcrops, particularly where soils are subacidic or circumneutral. | Primarily a species of the Ridge and Valley Province of PA, MD, WV, and VA, H. pubescens ranges south to only a few locations in the upper Piedmont of NC. The report in RAB of the occurrence of H. pubescens in Madison County, NC, is apparently erroneous; Wells (1984) shows H. pubescens reaching its southern limit just south of the VA border, and not occurring at all in KY, TN, or the mountains of NC. She found the bract characters used in the key in RAB to be unreliable. Reported by Hill & Horn (1997) for South Carolina {report needs verification}. |  |
| Saxifragaceae | Heuchera richardsonii | Prairie Alumroot, Midwestern Alumroot, Richardson's Alumroot | Upland prairies, glades, bluffs, rock outcrops. | ON west to BC, south to MI, c. IN, IL, MO, ne. OK, w. MT, and c. CO. |  |
| Saxifragaceae | Heuchera sanguinea var. sanguinea | Coral Bells | Cultivated as an ornamental "wildflower", and rarely seen as a waif or remnant from cultivation. | Native of w. North America. |  |
| Saxifragaceae | Heuchera villosa | Crag-jangle, Rock Alumroot | In crevices of rock outcrops, or in thin soil over boulders, a characteristic component of the flora of high elevation cliffs and summits (to at least 1920 m), not particular about the rock type, occurring on a wide range of rock types in our area, including felsic gneisses and schists, mafic gneisses, granites, quartzites, and others, probably the most acidophilic of our taxa of Heuchera. | W. VA and s. WV south through w. NC and e. TN to nw. SC, n. GA, ne. AL (primarily a Southern Blue Ridge endemic). |  |
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